title: Histiocytosis X: a clinical presentation.
abstract: A 56-year-old male complained of chronic oral ulcers. Initial workup revealed diffuse alveolar bone destruction and other systemic disturbances including diabetes insipidus. Biopsy suggested histiocytosis X and further tests verified the diagnosis. A clinical differential diagnosis is developed, follow-up is presented and the entities comprising histiocytosis X are discussed.
mesh_terms: D002294:Carcinoma, Squamous Cell / Q000473:pathology; D003937:Diagnosis, Differential; D006105:Granulomatous Disease, Chronic / Q000473:pathology; D006646:Histiocytosis, Langerhans-Cell / Q000473:pathology*; D006801:Humans; D007938:Leukemia / Q000473:pathology; D008297:Male; D008875:Middle Aged; D009062:Mouth Neoplasms / Q000473:pathology